US2618023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for compacting textile fibers
Assignee: Whitin Machine Works Inc
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Filing: 1948-07-26
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Granted: 1952-11-18
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Expires: 1968-07-26
Abstract
No abstract record available.
Inventors
- 👤 Lester E Keene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:19
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/70; D01H5/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |